2 * Marvell Wireless LAN device driver: AP specific command handling
4 * Copyright (C) 2012, Marvell International Ltd.
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
22 /* This function initializes some of mwifiex_uap_bss_param variables.
23 * This helps FW in ignoring invalid values. These values may or may not
24 * be get updated to valid ones at later stage.
26 void mwifiex_set_sys_config_invalid_data(struct mwifiex_uap_bss_param
*config
)
28 config
->rts_threshold
= 0x7FFF;
29 config
->frag_threshold
= 0x7FFF;
30 config
->retry_limit
= 0x7F;
33 /* Parse AP config structure and prepare TLV based command structure
34 * to be sent to FW for uAP configuration
36 static int mwifiex_cmd_uap_sys_config(struct host_cmd_ds_command
*cmd
,
37 u16 cmd_action
, void *cmd_buf
)
40 struct host_cmd_ds_sys_config
*sys_config
= &cmd
->params
.uap_sys_config
;
41 struct host_cmd_tlv_dtim_period
*dtim_period
;
42 struct host_cmd_tlv_beacon_period
*beacon_period
;
43 struct host_cmd_tlv_ssid
*ssid
;
44 struct host_cmd_tlv_channel_band
*chan_band
;
45 struct host_cmd_tlv_frag_threshold
*frag_threshold
;
46 struct host_cmd_tlv_rts_threshold
*rts_threshold
;
47 struct host_cmd_tlv_retry_limit
*retry_limit
;
48 struct mwifiex_uap_bss_param
*bss_cfg
= cmd_buf
;
51 cmd
->command
= cpu_to_le16(HostCmd_CMD_UAP_SYS_CONFIG
);
52 cmd_size
= (u16
)(sizeof(struct host_cmd_ds_sys_config
) + S_DS_GEN
);
54 sys_config
->action
= cpu_to_le16(cmd_action
);
56 tlv
= sys_config
->tlv
;
58 if (bss_cfg
->ssid
.ssid_len
) {
59 ssid
= (struct host_cmd_tlv_ssid
*)tlv
;
60 ssid
->tlv
.type
= cpu_to_le16(TLV_TYPE_UAP_SSID
);
61 ssid
->tlv
.len
= cpu_to_le16((u16
)bss_cfg
->ssid
.ssid_len
);
62 memcpy(ssid
->ssid
, bss_cfg
->ssid
.ssid
, bss_cfg
->ssid
.ssid_len
);
63 cmd_size
+= sizeof(struct host_cmd_tlv
) +
64 bss_cfg
->ssid
.ssid_len
;
65 tlv
+= sizeof(struct host_cmd_tlv
) + bss_cfg
->ssid
.ssid_len
;
67 if (bss_cfg
->channel
&& bss_cfg
->channel
<= MAX_CHANNEL_BAND_BG
) {
68 chan_band
= (struct host_cmd_tlv_channel_band
*)tlv
;
69 chan_band
->tlv
.type
= cpu_to_le16(TLV_TYPE_CHANNELBANDLIST
);
71 cpu_to_le16(sizeof(struct host_cmd_tlv_channel_band
) -
72 sizeof(struct host_cmd_tlv
));
73 chan_band
->band_config
= bss_cfg
->band_cfg
;
74 chan_band
->channel
= bss_cfg
->channel
;
75 cmd_size
+= sizeof(struct host_cmd_tlv_channel_band
);
76 tlv
+= sizeof(struct host_cmd_tlv_channel_band
);
78 if (bss_cfg
->beacon_period
>= MIN_BEACON_PERIOD
&&
79 bss_cfg
->beacon_period
<= MAX_BEACON_PERIOD
) {
80 beacon_period
= (struct host_cmd_tlv_beacon_period
*)tlv
;
81 beacon_period
->tlv
.type
=
82 cpu_to_le16(TLV_TYPE_UAP_BEACON_PERIOD
);
83 beacon_period
->tlv
.len
=
84 cpu_to_le16(sizeof(struct host_cmd_tlv_beacon_period
) -
85 sizeof(struct host_cmd_tlv
));
86 beacon_period
->period
= cpu_to_le16(bss_cfg
->beacon_period
);
87 cmd_size
+= sizeof(struct host_cmd_tlv_beacon_period
);
88 tlv
+= sizeof(struct host_cmd_tlv_beacon_period
);
90 if (bss_cfg
->dtim_period
>= MIN_DTIM_PERIOD
&&
91 bss_cfg
->dtim_period
<= MAX_DTIM_PERIOD
) {
92 dtim_period
= (struct host_cmd_tlv_dtim_period
*)tlv
;
93 dtim_period
->tlv
.type
= cpu_to_le16(TLV_TYPE_UAP_DTIM_PERIOD
);
94 dtim_period
->tlv
.len
=
95 cpu_to_le16(sizeof(struct host_cmd_tlv_dtim_period
) -
96 sizeof(struct host_cmd_tlv
));
97 dtim_period
->period
= bss_cfg
->dtim_period
;
98 cmd_size
+= sizeof(struct host_cmd_tlv_dtim_period
);
99 tlv
+= sizeof(struct host_cmd_tlv_dtim_period
);
101 if (bss_cfg
->rts_threshold
<= MWIFIEX_RTS_MAX_VALUE
) {
102 rts_threshold
= (struct host_cmd_tlv_rts_threshold
*)tlv
;
103 rts_threshold
->tlv
.type
=
104 cpu_to_le16(TLV_TYPE_UAP_RTS_THRESHOLD
);
105 rts_threshold
->tlv
.len
=
106 cpu_to_le16(sizeof(struct host_cmd_tlv_rts_threshold
) -
107 sizeof(struct host_cmd_tlv
));
108 rts_threshold
->rts_thr
= cpu_to_le16(bss_cfg
->rts_threshold
);
109 cmd_size
+= sizeof(struct host_cmd_tlv_frag_threshold
);
110 tlv
+= sizeof(struct host_cmd_tlv_frag_threshold
);
112 if ((bss_cfg
->frag_threshold
>= MWIFIEX_FRAG_MIN_VALUE
) &&
113 (bss_cfg
->frag_threshold
<= MWIFIEX_FRAG_MAX_VALUE
)) {
114 frag_threshold
= (struct host_cmd_tlv_frag_threshold
*)tlv
;
115 frag_threshold
->tlv
.type
=
116 cpu_to_le16(TLV_TYPE_UAP_FRAG_THRESHOLD
);
117 frag_threshold
->tlv
.len
=
118 cpu_to_le16(sizeof(struct host_cmd_tlv_frag_threshold
) -
119 sizeof(struct host_cmd_tlv
));
120 frag_threshold
->frag_thr
= cpu_to_le16(bss_cfg
->frag_threshold
);
121 cmd_size
+= sizeof(struct host_cmd_tlv_frag_threshold
);
122 tlv
+= sizeof(struct host_cmd_tlv_frag_threshold
);
124 if (bss_cfg
->retry_limit
<= MWIFIEX_RETRY_LIMIT
) {
125 retry_limit
= (struct host_cmd_tlv_retry_limit
*)tlv
;
126 retry_limit
->tlv
.type
= cpu_to_le16(TLV_TYPE_UAP_RETRY_LIMIT
);
127 retry_limit
->tlv
.len
=
128 cpu_to_le16(sizeof(struct host_cmd_tlv_retry_limit
) -
129 sizeof(struct host_cmd_tlv
));
130 retry_limit
->limit
= (u8
)bss_cfg
->retry_limit
;
131 cmd_size
+= sizeof(struct host_cmd_tlv_retry_limit
);
132 tlv
+= sizeof(struct host_cmd_tlv_retry_limit
);
135 cmd
->size
= cpu_to_le16(cmd_size
);
139 /* This function prepares the AP specific commands before sending them
141 * This is a generic function which calls specific command preparation
142 * routines based upon the command number.
144 int mwifiex_uap_prepare_cmd(struct mwifiex_private
*priv
, u16 cmd_no
,
145 u16 cmd_action
, u32 cmd_oid
,
146 void *data_buf
, void *cmd_buf
)
148 struct host_cmd_ds_command
*cmd
= cmd_buf
;
151 case HostCmd_CMD_UAP_SYS_CONFIG
:
152 if (mwifiex_cmd_uap_sys_config(cmd
, cmd_action
, data_buf
))
155 case HostCmd_CMD_UAP_BSS_START
:
156 case HostCmd_CMD_UAP_BSS_STOP
:
157 cmd
->command
= cpu_to_le16(cmd_no
);
158 cmd
->size
= cpu_to_le16(S_DS_GEN
);
161 dev_err(priv
->adapter
->dev
,
162 "PREP_CMD: unknown cmd %#x\n", cmd_no
);
169 /* This function sets the RF channel for AP.
171 * This function populates channel information in AP config structure
172 * and sends command to configure channel information in AP.
174 int mwifiex_uap_set_channel(struct mwifiex_private
*priv
, int channel
)
176 struct mwifiex_uap_bss_param
*bss_cfg
;
177 struct wiphy
*wiphy
= priv
->wdev
->wiphy
;
179 bss_cfg
= kzalloc(sizeof(struct mwifiex_uap_bss_param
), GFP_KERNEL
);
183 bss_cfg
->band_cfg
= BAND_CONFIG_MANUAL
;
184 bss_cfg
->channel
= channel
;
186 if (mwifiex_send_cmd_async(priv
, HostCmd_CMD_UAP_SYS_CONFIG
,
187 HostCmd_ACT_GEN_SET
, 0, bss_cfg
)) {
188 wiphy_err(wiphy
, "Failed to set the uAP channel\n");